Issue #1772673: The type of `char*` arguments now changed to `const char*`.
diff --git a/Include/grammar.h b/Include/grammar.h
index 862f6a8..ba7d19d 100644
--- a/Include/grammar.h
+++ b/Include/grammar.h
@@ -69,13 +69,13 @@
/* FUNCTIONS */
grammar *newgrammar(int start);
-dfa *adddfa(grammar *g, int type, char *name);
+dfa *adddfa(grammar *g, int type, const char *name);
int addstate(dfa *d);
void addarc(dfa *d, int from, int to, int lbl);
dfa *PyGrammar_FindDFA(grammar *g, int type);
-int addlabel(labellist *ll, int type, char *str);
-int findlabel(labellist *ll, int type, char *str);
+int addlabel(labellist *ll, int type, const char *str);
+int findlabel(labellist *ll, int type, const char *str);
const char *PyGrammar_LabelRepr(label *lb);
void translatelabels(grammar *g);